i think hes too old for her. it just seems a bit awk. and also, her nephew and his daughter? isn't that relationship going to be a bit too complicated?
i think she's a bit young for him. plus the fact that he had a relationship with her sister would be quite weird
though it's already episode 19... there's only 1 episode left. I don't think there's much room left for development. i think it's just slight "good feeling". its probably not as far as liking someone. just simply you'll be more willing to help someone out than the average joe.